Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"dung phu hut snippets" » "dung phan hut snippets", "dung cho hut snippets", "dung he hut snippets", "dung thu hut snippets", "dung phu hung snippets", "dung phu thuy snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung phu hut snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung phu hut snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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